. >> reporter: the study by transportation for america says bridges all across the state are in need of repair. bay area alone has 250 of them. >> we built so much infrastructure about 30, 40, and 50 years ago that it's now time to repair it. and we never put away enough money to do that. what happens in an earthquake and really the answer is, we won't know until it happens, but you can bet that if these are in a state of good repair, we will be better off. >> reporter: drivers say the study is a definite wake-up call. ron said, until today, he didn't realize anything was wrong. >> honestly, it's not something that i've ever given any consideration to. now that i know about this, i don't know that i'll be changing my patterns, but it certainly will make me think twice about taking on-ramps and going across bridges like this. and most importantly, i would like to see some action taken to improve them. >> reporter: the good news about all of this, if there is anything, that none of the bay area's major bridges is considered deficiency. it's the little ones that have the big problems. i